An assistance system, that receives model data of an article from a client terminal and assists setting of a machining condition of the article, has: a specification unit configured to specify a first welding portion of the article from the model data according to a first condition among a plurality of priority conditions in manufacturing the article, and specify a second welding portion of the article from the model data according to a second condition different from the first condition among the plurality of priority conditions; a pattern generation unit configured to generate a first machining pattern image of the article in which the first welding portion is indicated and a second machining pattern image of the article in which the second welding portion is indicated; and a provision unit configured to provide a user with the first machining pattern image and the second machining pattern image.

An assistance system, that receives model data of an article from a client terminal and assists setting of a machining condition of the article, has: a specification unit configured to specify a first welding portion of the article from the model data according to a first condition among a plurality of priority conditions in manufacturing the article, and specify a second welding portion of the article from the model data according to a second condition different from the first condition among the plurality of priority conditions; a pattern generation unit configured to generate a first machining pattern image of the article in which the first welding portion is indicated and a second machining pattern image of the article in which the second welding portion is indicated; and a provision unit configured to provide a user with the first machining pattern image and the second machining pattern image.